7
1. Installation (Space)
•
Product with fl ammable refrigerants, shall
be installed according to the minimum room
area, A
min
(m²) mentioned in Installation
Instructions.
•
In case of fi eld charge, the eff ect on
refrigerant charge caused by the diff erent
pipe length has to be quantifi ed, measured
and labelled.
•
Must ensure the installation of pipe-work shall
be kept to a minimum. Avoid use dented pipe
and do not allow acute bending.
•
Must ensure that pipe-work shall be securely
mounted and guarded from physical damage.
•
Must comply with national gas regulations,
state municipal rules and legislation. Notify
relevant authorities in accordance with all
applicable regulations.
•
Must ensure mechanical connections be
accessible for maintenance purposes.
•
In cases that require mechanical ventilation,
ventilation openings shall be kept clear of
obstruction.
•
When disposal of the product, do follow to the
precautions in #11 and comply with national
regulations.
Always contact to local municipal offi ces for
proper handling.
2. Servicing
2-1. Service personnel
•
The system is inspected, regularly supervised
and maintained by a trained and certifi ed
service personnel who is employed by the
person user or party responsible.
•
Ensure the refrigerant charge is in
accordance with the room size within which
the refrigerant containing parts are installed.
•
Ensure refrigerant charge not to leak.
•
Any qualifi ed person who is involved with
working on or breaking into a refrigerant
circuit should hold a current valid certifi cate
from an industry-accredited assessment
authority, which authorizes their competence
to handle refrigerants safely in accordance
with an industry recognised assessment
specifi cation.
•
Servicing shall only be performed
as recommended by the equipment
manufacturer. Maintenance and repair
requiring the assistance of other skilled
personnel shall be carried out under the
supervision of the person competent in the
use of fl ammable refrigerants.
•
Servicing shall be performed only as
recommended by the manufacturer.
2-2. Work
•
Prior to beginning work on systems
containing fl ammable refrigerants, safety
checks are necessary to ensure that the
risk of ignition is minimised. For repair to the
refrigerating system, the precautions in #2-2
to #2-8 must be followed before conducting
work on the system.
•
Work shall be undertaken under a controlled
procedure so as to minimize the risk of a
fl ammable gas or vapour being present while
the work is being performed.
•
All maintenance staff and others working
in the local area shall be instructed and
supervised on the nature of work being
carried out.
•
Avoid working in confi ned spaces. Always
ensure away from source, at least 2 meter of
safety distance, or zoning of free space area
of at least 2 meter in radius.
•
Wear appropriate protective equipment,
including respiratory protection, as conditions
warrant.
•
Keep all sources of ignition and hot metal
surfaces away.
•
Explosion-proof electronic components shall
only be replaced with parts specifi ed by
the appliance manufacturer. Replacement
with other parts may result in the ignition of
refrigerant in the event of a leak.
2-3. Checking for presence of refrigerant
•
The area shall be checked with an
appropriate refrigerant detector prior to and
during work, to ensure the technician is aware
of potentially fl ammable atmospheres.
•
Ensure that the leak detection equipment
being used is suitable for use with fl ammable
refrigerants, i.e. non sparking, adequately
sealed or intrinsically safe.
•
In case of leakage/spillage happened,
immediately ventilate area and stay upwind
and away from spill/release.
•
In case of leakage/spillage happened, do
notify persons down wind of the leaking/
spill, isolate immediate hazard area and keep
unauthorised personnel out.
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